Polishing machine.



PATENTED JUNE 28, 1904.

G. A. BNSIGN. POLISHING MACHINE.

APPLIGATION FILED FEB. 12, 1904.

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No. 763,743. PATBNTBD JUNE 28, 1904.

G. A. ENSIGN.

POLISHING MACHINE.

APPLICATION P ILED rms. 12, 1904. No MODEL. 4 SHEETS-SHEET 2.

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Illlllll IIIIIIIIIIIIIIIIIIIIIIN ATTO YS No. 763,743. PATENTED JUNE 28, 1904.

G. A. ENSIGN.

POLISHING MACHINE.

APPLICATION FILED FEB. 12. 1904.

N0 MODEL. 4 SHEETS-SHEET 3.

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No. 76ans.

UNITED STATES GEQRGE A.

rammed June as, 1904.

PATENT OFFICE.

ENSIGN, DEFIANCE, OHIO, ASSIGNOR TO THE DEFIANCE MACHINE WORKS, OF DEFIANOE, OHIO.

PoLlsHiNG-MACHINE.

SPECIFICATION forming part of* Letters Patent No. 763,743, dated .T une 28, 1904. Application filed February 12, 1904. SerialNo. 193.273. (No model.)

To all whom) t vnu/,y concern:

Beit known Ithat I, GEORGE A. ENsIGN, a citizen ofthe United States, and a resident of Defiance, in the county of Defiance and State of Ohio, have invented a new and Improved Polishing-Machine, of which the following is a full, clear, and exact description.

The invention relates to woodworking machinery, and 'more particularly to polishingmachines using an endless sand or other polishingbelt.

Theobject of the invention is to provide a 'r new and improved polishing-machine more especially designed for polishing wagon and carriage wheels'pokes, neck-yokes, swingle.

trees, whiiiietrees, handles, and other turned articles requiring a high finish, the machine being arranged to automaticallyrotate the article when moving it in contact with the polishing-belt. i

The invention consists of novel features and parts and combinations of the same, as will be.

more fully Vdescribed hereinafter and then pointed out in the claims.

represented inthe accompanying drawings,

. forming apart of this specification, in which I similar characters of reference indicate correticle.

n spending parts in all. the views.

Figure 1`is a perspective view of the improvement. Fig. 2 is an' enlarged plan view of and B3 journaled in suitable bearings on the main frame C of any approved construction. On the shaft B2 is secured a pulley B4, connected by belt'with other machinery for imparting ap rotary motion to the shaft B2 and the pulley B to impart a traveling motionl to the webor belt A in the direction of the arrow d, so that the polishing-surface of the upper run of theV A practical embodiment of the invention is web or belt A travels .toward the spoke or other article D to be polished and extending obliquely across the upper runY ofthe belt, as plainly indicated in Figs.` l, 2, and 3.

One end of the article D is held in a suitable socket E, fastened on a shaft F, mounted to rotate in bearings G and G2, arranged on a swing-frame G, having a rod G3 mounted to turn in suitable bearings arranged on a support H, provided with a vertically -disposed cylindrical bearing H', adapted to be clamped Within a split column C', forming part of a standard O2, forming part of the main frame C. The axis of the bearing H is disposed approximately in the middle of the belt or web A, so that when the column C is loosened to allow turning of the bearing H then the whole support lH can be turned to bring the article D into the desired oblique position relative to the belt A to insure the best resultthat is, to highly polish the article-'D without leaving any marks or scratches thereonand also to allow of polishing longer and shorter articles on the same belt.

- On the rod G3 is secured an arm G4, on

. wh ich is removablysecured a bearing E, pref' erably made of wood and formed with a halfround recess for the outer or free end of the article D to revolve in to prevent the article D from being bent while being polished by the belt A.

Y The Aswing-frame G is counterbalanced to insure an easyswinging motion thereof, and for this purpose an arm G is secured to the rod G3, and on this arm is adjustably fastened a counterbalancing-weight G6.

In order to hold the swing-frame G normally in an uppermost position-that is, the work D out of engagement with the upper run of the belt A--a spring G7 is provided and connected at'one end to the arm G5 and atthe other end to a bolt H2, held adjustably in a bracket H3, projecting from the support v sgg. Y d

to be moved in frictional engagement with a clutch-pulley I', mounted to rotate loosely on the said shaft F. The clutch-pulley I' is connected by a belt I2' with a pulley I3, secured on a shaft J, mounted to turn in bearings H1, held on or forming part of the support H, and on the said shaft J (see Fig. 6) is secured a bevelY gear-wheel J' in mesh with a bevel gear-wheel J2, secured on the lower end of a shaft J 3, mounted to turn in the cylindrical bearing H', previously mentioned, and on the upper end of the said shaft J3 is secured a bevel gear-wheel J 4 in mesh with a bevel gear-wheel J 5, fastened on a transverse shaft K, journaled in suitable bearings in the upper end of the standard C', as plainly indicated in Figs. l and 3.

On the shaft K is secured a pulley K', connected by a belt K2 with a pulley K3 ony the shaft B2, so that when the latter is rotated a rotary motion is given to the shaft K by the pulleys K3 and K' and the belt K2, and the rotary motion of the shaft K is transmitted by the gear-wheels J 5 and J i to the shaft J 3, which by the bevel gear-wheels J 2 and J' rotates the shaft J. Thel rotary motion of the shaft J is transmitted by the pulley I3 and belt I2 to the pulley I', and when the clutch member I has been moved in frictional engagement with the clutch-pulley I' then the latters rotary motion is imparted tothe clutch member I, and consequently to the shaft F, so that a rotary motion is given to the article D, held in the socket E, fastened to the shaft F.

In order to keep the belt I2 suficiently tight, abelt-tightening pulley L is provided, journaled on rods L', mounted to slide up and down in the swing-frame G and pressed on by a spring L2 to'hold the tightening-pulley L in sufficient frictional contact with the upper run of the belt I2 to tighten the latter.

In order to move the clutch member I in and out of frictional contact with the clutchpulley I', the following device is provided: On the outer end of the shaft F is held a'shifting collar F', hung on centers F", carried by one end of a lever N, fulcrume'd at N' (see Figs. 3 and 5) on a bracket G5, attached to or forming part of the frame G. The lever N is L-shaped and has its horizontal lower end pivotallyconnected with an arm O, fulcrumed at O' on the bracket G5, the free end of the arm O being connected by a rod or link P' with a treadle P, fulcrumed on the main frame C and under the control of the operators foot. When the operator presses the treadle P, then a downward swinging motion is given to the arm O, which by its connection with the lever N imparts aswinging motion thereto to shift the collar F', and consequently the shaft F, transversely to move the clutch I into frictional engagement with the clutch-pulley I' for transmitting the rotary motion of the latter to the shaft F, as previously explained. When the operator releases the pressure on the treadle P, then the clutch member I moves out'of frictional engagement with the clutch-pulleyI', the'return movement of the parts being accomplished by a spring Q, held on the frame G and pressing on a screw-rod Q', adjustably secured to the upper terminal of the lever N. (See Fig. 5.)

The bearing Gz'supports a friction-disk Gx for the front face of theclutch member I to abut against to bring the latter, and consequently the shaftF and the article D, quickly to a stop after the operator releases the treadle P.

The operation is as follows: The swingframe G is normally held by the4 action of the spring G7 in such a position that the spoke or other article D inserted at one end in the socket E and resting with the free end on the bearing or shoe E' standsa distance above the polishing-face of the upper run of the belt A, as illustrated inthe drawings. Now when the shaft D2 is rotated a traveling motion is given to the belt A and the clutch-wheel I' is roy tated, and when the operator now presses the treadle P then the clutch member I is thrown into engagement with the rotating clutchwheel I' to rotate the shaft F and the article D, and

then a swinging motion in a downwarddirec-y tion is given to the swing-frame G, so as to move the article D in contact with the polishing-surface of the belt A, and as the article D is rotated it is evident that the contact of the article with the polishing-surface of the belt produces a high polish on the rotating article. As soon as the operator releases the treadle P the swing-frame G swings back toits normal uppermost position by the action of the as soon as the shaft F is started andl the treadle P is further pressed downward.v

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spring G7 and at the same time the shaft F,

with the clutch member I, is caused to slide outward by the action of the spring Q, so as to move the clutch member I out of frictional engagement with the `clutch-pulley I' and in engagement with the fixed surface GS to bring the clutch member I, shaft F, and article D to a stop to permit the operator to readily remove the polished article D from the socket E and bearing E' and to allow of inserting another article in the said socket and bearing for repeating the above-described operation and polishing the second article.

From the foregoing it will be seen that the operator has both hands free to insert and remove the articles, and as the article is turned while in contact with the polishing-belt it is evident that the polishing operation is performed very quickly, and a single operator can quickly handle the articles to allow of highly polishing' a large number of articles in a comparatively short time.

Having thus described my invention, I claim as new and desire to secure by Letters Patent* l. A polishing-machine having a traveling polishingweb, a counterbalanced support mounted to swing and having means for ro- IIO tatably supporting the article to be polished, a driving mechanism for turning the said means and the article held thereon, a spring for normally holding the said support in an uppermost position and thearticle out of contact with the polishing-web, and a manuallycontrolled device for swinging thesupport downward, to move the article in frictional contact with the polishing-web, as set forth.

2. A polishing-machine having a traveling polishing web, a counterbalanced support mounted to swing and having means for rotatablysupporting the article to be polished, a drivingmechanism for turning the said means and the article held thereon, a spring for normally holding the said support in an` uppermost position and the article out of contact with the polishing-web, and a manuallycontrolled device for swinging the support downward, to move the article in frictional contact with the polishing-web, the said device controlling the said driving mechanism, as set forth.

3. A polishing-machine having a support mounted to swing and provided with means for rotatably supporting the article to be turned, a driving mechanism for the said means, including a driven clutch-pulley and a clutch member, and manually-controlled means for moving the said clutch member in or out of contact with the clutch-pulley, as set forth.

4. A polishing-machine having a support mounted to swing and provided with means for rotatably supporting the article to be turned, a driving-gear for the said means, including a driven clutch-pulley and a clutch member, and manually-controlled means for moving the said clutch member in or out of contact with the clutch-pulley, and for imparting a swinging motion to the said support, as set forth.

5. A polishing-machine provided with a swing-frame, a shaft journaled thereon and having means for supporting the article to be polished, a driven clutch-pulley loose on the said shaft, a clutch member secured on the said shaft and adapted to engage the said clutch-pulley, and a manually-controlled mechanism for shifting the said shaft longitudinally in its bearings to move the clutch member in and out of contact with the clutchpulley, as set forth.

6. A polishing-machine provided with a swing-frame, a shaft journaled thereon and having means for supporting the article 'to be polished, a driven clutch-pulley loose on the said shaft, a clutch member secured on the said shaft and'adapted to engage the said clutchpulley, and a manually-controlled mechanism for shifting the said shaft in its bearings to move the clutch member in and out of Contact with the clutch-pulley, the said mechanism being connected with the said frame,

to impart a swinging motion to the latter, as set forth.

7. A polishingmachine provided with a swing-frame, a shaft journaled thereon and having means for supporting the article to be polished, a driven clutch-pulley loose on the said shaft, a clutch member secured on the said shaft and adapted to. engage the said clutch-pulley, a manually-controlled mechanism for shifting the said shaft in its bearings, to move the clutch member in and out of contact with the clutch-pulley, the said mechanism being connected with the said frame, to impart a swinging motion to the latter after the clutch member is in engagement with the said clutch-pulley, and a spring-balance connected with the said frame, to return the same and parts connected therewith on releasing the said mechanism, as set forth.

8. A polishing-machine provided with a swing-frame, a shaft journaled thereon and having means for supporting the article to be polished, a driven clutch-pulley loose on the said shaft, aclutch member secured on the said shaft and adapted to engage the said clutchpulley, and a manually-controlled mechanism for shifting the said shaft in its bearings, to move the clutch member in and out of contact with the clutch-pulley, the said mechanism being connected with the said frame, to impart a swinging motion to the latter, the said mechanism comprising a treadle, an arm fulcrumed on the said frame and connected with the treadle, and a lever fulcrumed on the frame and connected at one end with the said arm and at its other end with the said shaft, as set forth.

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9. A polishing-machine provided with a i swing-frame, a shaft journaled thereon and having means for supporting the article to be polished, a driven clutch-pulley loose on the said shaft, a clutch member secured on the said shaft and adapted to engage the said clutchpulley, and a manually-controlled mechanism for shifting the said shaft in its bearings, to move the clutch member in and out of contact with and from the clutch-pulley, the said mechanism being connected with the said frame, to impart a swinging motion to the latter, the said mechanism comprising a treadle, an arm fulcrumed on the said frame and connected with the said treadle, a lever fulcrumed on'the said frame and connected with the said arm, and a shifting collar hung on centers in the said lever and engaging the said shaft, as set forth.

l0. A polishing-machine provided with a swing-frame, a shaft journaled thereon and having means for supporting the article to be polished, a driven clutch-pulley loose on the said shaft, a clutch member secured on the said shaft and adapted to engage the said clutchpulley, and a manually-controlled mechanism for shifting the said shaft in its bearings, to

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move the clutch member in and out of contact With the clutch-pulley, the said mechanism being connected with the said frame, to impart a swinging motion to the latter, the said mechanism comprising a treadle, an arm fulcrumed on the said frame and connected with the treadle, a lever fulcrumed on the frame .and connected at one end with the said arm and at its other end With the said shaft, and a spring connection between the said lever and the said frame, as set forth.

1l. A polishing-machine provided with an endless polishing-belt, and a Work-support, adapted to be turned on an axis approximately at right angles to the belt, at the middle thereof, as set forth.

12. A polishing-machine provided With a driven polishing-belt, aWork-support adapted to be turned on an axis approximately at right angles to the belt at the middle thereof, a swing-frame hung on the said support and having revoluble means for holding and turning the Work, and a gearing for driving the said means, as set forth.

13. A polishing-machine provided with a driven polishing-belt, a Work-support adapted to be turned on an axis approximately at right angles to the belt at the middle thereof, a swing-frame hung on the said support and having revoluble .means for holding and turning the Work, and a gearing for driving the said means, part of the gearing being supported on the said support and part by the swingframe, as set forth.

14. A polishing-machine provided With a driven polishing-belt, a Work-support adapted to be turned on an axis approximately at right angles to the belt at the middle thereof, a swing-frame hung on the said support and having revoluble means for holding and turning the work, a gearing for driving the said means, and a manually-controlled device for operating the said swing-frame and for controlling the said gearing, as set forth.,

In testimony whereof I have signed my name to this specication in the presence of two subscribing witnesses.

GEORGE A. ENSIGN.

Vitnesses:

GEO. W DEATRICK, J os. BAUER. 

